Chair



J'. NICHOLS.

(No Model.)

CHAIR.

No. 394,599. Patented Dec. 18, 1888.

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' UNITED STATES APATENT OEEICE.

JOHN NICHOLS, OF BALDVINSVILLE, ASSIGNOR TO PHILANDER DERBY In CO., OF GARDNER, IWIASSACI'IIISET'IS.

CHAIR.

SPECIFICATION forming part of Letters Patent No. 394,599, dated December 18, 1888.

i Application tiled May 31, 1884. Serial No. 133,365. (No model.)

To all whom it may concern:

Be it known that I, JoHN NIcHoLs, of Baldwinsville, county of IVorcester, State of Massachusetts, have invented an Improvement in Chairs, of which the following' description, in connection with the accompanyingdrawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object the con- Io struction of a childs chair provided with two series of side bars, the bars ot' each series being hinged tovone another and having a number of pivoted or hinged links connected therewith, and with the seat and base or sup- I 5 port, whereby the seat is enabled to be raised above the base or lsupport and be firmly held at different heights, so as to provide a high chair, a low chair, or a chair ot' medium height, as may be desired.

2o The nature of my invention consists, primarily, of a base or suitable support and chair seat and frame, combined with a series of hinged side bars connected with the base and seat, and a number ot' pivoted links at- 2 5 tached to said side bars, seat, and base, substantially as hereinafter fully described, and particularly pointed out in the claims.

Figure 1 shows in side elevation a childs chair embodying my invention, the seat and 3o seat-frame being shown as supported at a medium height, and showing in dotted lines the highest position of the parts; Fig. i', a front elevation showing the parts folded for storage or packing and in dotted lines the 3 5 seateframe elevated when the chair is to be used in its lowest position, and Fig. 3 a detail to more clearly show the relation of parts when the back and arms are folded onto the seat.

4o In the annexed drawings, A represents a base or suitable support for the working parts, which latter consist of two series of hinged side bars, B B, connected sectional pivoted links E E E2, and a superimposed chair seat and back. As the two sets of bars and links are alike in construction and operation, a description of those on one side of the chair will' suffice. One end of the lowermost bar of a series of bars B is preferably pivoted to the 5o projecting ear a, and the bars are connected with one another at alternate ends by means of spring-hinges l), the uppermost bar being pivoted at one end to the plate c, attached to the seat A link consisting ot' two parts or sections, 55 e e, pivoted together at e?, is connected with the base A by the section e', and with the lowermost side bar l near its front or hinged end, by the section e, the said section e having an extension, 2, beyond its pivotal point e2, 6o provided with a locking-pin or bent portion,

3, (see link in dotted liues,) arranged at righi angles to the face or flat side ot' the sections e, s0 as to enter a corresponding notch, J., in the section e', whereliy, when the lowermost 65 side bar is litted on its pivot from the base, the sectional link is extended in a straight line and the pin enters the notch to lock the sections of the link in such position and hold the side bar above the base, as indicated in 7o Fig. l. Similarsectional links,E E2, &c.,ac cording to the number of bars used, are connected with the bars alternately near the front and back ends thereof in the manner indicated, the last or uppermost sectional lilik being fastened at one end to the side otthe seat near its rear end, as shown at 20.

The two series of side bars are connected with each other and braced by the ruugs f, (shown in full lilies in Fig. 8o

The back (lr is h inged to the plates g, att ached to the seat, and may be folded down onto the seat,as shown, arms l being also provided, which are pivot ed to the back at 5 and through the medium of the connected plate (i to the straight link 7, whichin turn is pivoted to the side ot' the seat, as shown at S, whereby .the back and arms may be folded on thc seat,

as shown in Fig. 2l.

rlhe back and arms are held in open or ele- 9o Vated position by sectional links k lt" of like construction as links E', the sectional link l.' being connected with the arm 71 and rigid or straight links 7, and the sectional links k', similarly attached to the seat and back, as clearly shown in Fig. l. A foot-rest, I, is supported in front and below the seat by means of the supports i.

A table or tray, m, (shown as stored in the base in Fig. 2 when not required,) is detach- 10o ably connected with and in front of the seat C by means of supports n, pivoted between their ends to the sides of the table, their upper ends entering recesses (shown in Fig. l) in the under side of the arm, h, and their lower ends being provided with bayonet-slits, which are engaged by studs o on the 'lower portion of the straight links 7. Sectional links p, pivoted to the supports 'n and table m, enable the table or tray to ybe supported in proper position with the seat.

Fig. l shows in full lines the chair proper supported in position at a medium height, while the dotted lines show the chair supported in its highest position.

The spring-hinges b give `resiliency'to the bars and aid in keeping the sectional links in locked position, since when said links are being locked a torsional action of ,the springhinges must be partly overcome, which reacts on the sectional links to hold them in locked position.

The article of furniture herein described when folded, as in full lines, Fig. 2, `may be used as a stool, the rear of the downturned back being padded as at top; with the back turned up, as shown by dotted lines, lFig. 2 the same may be usedas a low chair, and by lifting the seat and locking the same in elevated position by the braces a chair of two or three' different heights may be produced, and with either may be used the table.

The spring-hinges permit a certain limited amount of swaying; which is found very desirable in a chl'ds chair used for small children or babes.

Instead of the spring-hinges,I may use any other usual hinges; but the springs are preferred.

The article of furniture described takes up very little vroom when closed as a stool ready to be boxed or shipped..

In my application, Serial No. 137,518, filed July l2, 1884, I have shown an adjusting mechanism for the seat, which is held in extended position by a single series of jointed or sectional links arranged upon each side of the chair and in substantially the direct line of the burden. In the present case, while the sectional links are retained, there are two series arranged on each. side and in front and rear of the line of the burden; and the present invention, furthermore, is concerned with the peculiar form of adjusting mechanism, wherein the eXtensible bars are end-jointed in alternation only.

I claiml. A base or support and a chair seat, arms, and back, combined with two series of side bars end hinged in' alternation, and also hinged to the base and seat, suitable rungs or cross-pieces, and two sets of pivoted sectional links attached to the base, side bars, and seat at frontand rear on the sides of the chair, substantially as and for the purpose set forth. i

2. A base and seat combined with two series of connected side bars hinged at opposite ends in alternation and hinged to the base and seat, suitable rungs or' braces, and two sets of pivoted sectional links connected with the base, side bars, and seat at the sides of the chair and at the front and rear, and having interlocking pins and notches, substantially as set forth.

3. The seat G, provided with the plates g,

combined with the back G, Vpivoted to the plates g, the arms 7L, having the plates 6 and pivoted to the back, the rigid links 7, pivoted to the plates 6 and seat C, and the sectional links k k', provided `with interlocking pins and notches, substantially as described.

4. The seat C, the links 7havi'ng studs o, and the arms @provided with recesses, as described, combinedwith the trayhaving supports n, pivotedthereto between their ends and provided with bayonet-slots, and the sectional links p, having interlockingpins and notches,

substantially as described.

5. The base and seat and the intermediate attached side bars connected together at their ends in alternation, combined with a series of links pivotally connected `with the said base and seat and with the side bars at the sides of the chair at front and rear, vwhereby the seat may be elevated or depressed to occupy the desired level, substantially as described. 6. rlhe base, the series of side bars, B B,'at each side and jointed together at alternate ends, as at b, and the jointed links or braces between the said side bars and base and seat l, combined with a pivoted back and arms for the said seat, and with braces andlinks to hold the said seat and back elevated, substantially as shown and described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. Y

. JOHN NICHOLS. Vitne'sses: `1

ASA P. PERLY, n LEON F; CHAMECIN.

IOO 

